Gay sex is not illegal in most of Indonesia but is in Aceh, the only province which exercises Islamic law.
The men will each receive 85 strokes during the punishment, which will take place in public.
The pair, aged 20 and 23, were found in bed together by vigilantes who entered their private accommodation in March. They have not been identified.
'He was terrified' - Rebecca Henschke, BBC News, Banda Aceh
